MathDB1 problem
Let be a reflectionless Jacobi matrix in the wider class for which the Borg–Hochstadt theorem is known, and suppose that its spectrum has finitely many gaps. Let Theorem … rema…
Let be a reflectionless Jacobi matrix in the wider class for which the Borg–Hochstadt theorem is known, and suppose that its spectrum has finitely many gaps. Let Theorem … rema…